Kim, D. Y. Bae, M. H. Shin, J. C. Kim, Y. J. Lee, Y. J. Choi, K. J. Seong, T. Y. Choi, W. J. 2024-01-20T10:03:42Z 2024-01-20T10:03:42Z 2021-08-31 2014-04 1533-4880 https://pubs.kist.re.kr/handle/201004/126976 High density (In)GaAs/GaAs/AlGaAs nanowires (NWs) consisting of n-type core and p-type shell have been vertically grown on (111) GaAs substrate using metal organic chemical vapor deposition (MOCVD) and fabricated into solar cells. Au colloidal nanoparticles (NPs) are employed as a catalyst. High density nanowires were obtained by uniform distribution of Au NPs. Fe-SEM, TEM and HRTEM images show that the morphology of shell is sensitive to p-doping concentration. Increase in the density of p-doping precursor results in "kinking" of NPs and rough shell surface. The origin of kinking has been explained by the GaAs twin phases due to Zn segregation on the surface of shell. It has been observed that the morphology of NPs can be controlled through optimizing various source purge technique of DEZn and deposition temperature. Electrical properties of core shell doped NWs are carried out using I V characterization. The core shell NWs show characteristics of p-n junction as revealed by I-V studies. English AMER SCIENTIFIC PUBLISHERS SEMICONDUCTOR NANOWIRES SUPERLATTICES Vertical Growth of Core-Shell III-V Nanowires for Solar Cells Application Article 10.1166/jnn.2014.8606 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.4, pp.2913 - 2918 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 14 4 2913 2918 scie scopus 000332226600031 2-s2.0-84897770112 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article SEMICONDUCTOR NANOWIRES SUPERLATTICES Nanowire(s) Core-Shell Nanowire(s) Solar Cell MOCVD III-V Compound(s)